I have the artbook for Knights in the Nightmare, titled The Tome of Lost Souls.
Edit: ah I tried to take some photos of it with my phone, but GFAQs says the files are too big.
Anyway its a cool book, love the art in that game. Besides that though, I also have all three volumes the Ultimania Archive which is Final Fantasy art and development info. Also all the Mega Man Complete Works books. Also some other books like The Art of Mana for the Mana series, and the Art Style of Kirby for Kirby.
Nintendo Network ID: papercups
3DS FC:
4124 5916 9925